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In this paper, a review of recent improvements on inkjet-printed microfluidic-based tunable/sensing RF systems is reported. The devices, such as Radio Frequency IDentification (RFID) passive wireless tags, coplanar patch antennas, bandstop filters, and loop antennas, are all fabricated by combining the inkjet printing technology on photographic paper for metallization and bonding layers, and laser...
The aim of this letter is to experimentally demonstrate that the source of amplitude–frequency ( –) nonlinearities in aluminum nitride contour-mode MEMS resonators is to be attributed to the softening of the equivalent device Young's modulus due to self-heating effects. Resonators with a center frequency of about 1.16 GHz are here investigated as a case study. The resonator self-heating was evaluated...
In this paper, we propose a new method to reduce the temperature sensitivity of Chip Scale Atomic Clocks. We studied the relationship between RF power and the light shift as well as the relationship between the temperature and the collision shift, and the results are given. It is shown that the frequency shift caused by the change of the temperature can be compensated by the variation of light shift...
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